linderpat

Help folks - drove car home from gym (86.5, A/T), no problems, been running great. Went back out to take it out again, and as I shift into reverse to back it out of driveway, I hear a clang sound, then a grind sound, and no motion. Car is like stuck in neutral and just rolling backwards. I then shifted into drive, and grind and clang sound from torque tube/tranny area, and it again feels like neutral. Engine runs and revs fine, so I don't think it's a thrust bearing failure. When shifting back into park, it makes a grinding noise and doesn't go into park. It's like a dead tranny or a broken torque tube? Thoughts?
Also, it will have to be flat bedded from the rear tow hook. Any tips?

chaadster

If you're pulling it up a flatbed from the rear, I suggest jacking each front side first (i.e. lift, then put back down), so that the suspension is extended and gives you a little more spoiler clearance.

jpitman2

My money is on a driveshaft come disconnected from the diff.....quick look underneath should be obvious.
jp 83 Euro S AT 50k

SeanR

How is that? The drive shaft is inside the tube?

jon928se

Drive shft connected to the CV joint to the diff - probably the bolts fell out of the CV joint - Hopefully as thats the easy fix.

Other alternative is Central SHaft (inside TT) failed.

Mrmerlin

try putting the car in park and then try to push it if it rolls then the half shaft has left the building (IE come loose) sorry used the wrong word ........to test the drive shaft you will need to be under the car wedge a screw driver against the torque converter and turn the crank pulley with a socket if this combination turns then the driveshaft is broken, or possible a flex plate has broken or a pinch bolt has come out of the one of driveshaft couplers, remove the bottom of the bell housing and check the flex plate, also check the bolts hold the rear plate to the torque converter there are 6 of them acessed through the rear bell housing cover there should be 2 rubber covers in this remove the covers and check the bolts , the car will need to be off the ground to check the drive line

linderpat

isn't this also a symptom of the b2 brake band piston assembly? I will try what you suggest, hopefully that's all it is. Will I ruin the engine by trying these different things with car running?

Shark Attack

Wow, Ed that sucks. You are not going to ruin your engine. But Im not sure his idea will prove anything. Its an AT the "P" locking pin is in the tranny behind the TT.. thus on the same side of the TT as the wheels. Although I dont know much about the 928 AT. Do you have LSD? if not it could even be an axil.

Get the *** off the ground, turn a wheel and see if the one on the other side turns in the opposite direction. (NON LSD) If not, look at yoru axils

as far as checking the TT.. this is not going to be so easy, the front not so bad.. remove the bell and have a peek-see... in the back I dunno? I know on my 5 spd I have a little rubber cap that come off the rear back of the TT to allow access to the bolt that connects the TT to the input shaft of the tranny. Its not a large hole. But large enough to get a flash light and see if its turning. Good Luck

linderpat

Thanks Kyle. It's not an LSD. I'm not sure what to hope for other than the drive shaft and CV issue Jon mentioned above. The problem with lifting the *** end is that the car is on the end of the driveway, by the road, and it slopes with the *** end down. Thus, if I lift it to get under and do the obvious things like check the tranny fluid, the car will roll. I could try to put rr ties under each of the front wheels, but they may slide and the car will fall off the jacks and who knows what else I'll break maybe a good nights sleep will present a solution in the am...

Shark Attack

ooof.. I have seen your driveway... I wouldn't do that.. and im a bit on the wreckless side... Get it down on the street.. I also seen your neighborhood.. your neighbors will not put up with that for long either.... Well poop... ou can bring it here if you want. we can stick it in the garage and have at it next weekend.

linderpat

don't think my last post went up? this to bump it up just in case

Shark Attack

well since it is already on the hill... if you put it in park and it rolls down the hill... its either a rear shaft or the tranny for sure

linderpat

man I'd love to do that! I do think it's going on the flatbed tomorrow to John's shop in Bridgeville, however - the 928 guru. This is going to hurt, but John's as reasonable as they come. Been doing alot of research on Renn and other sources tonite, and the range is scary expensive to not so bad. If the prognosis isn't too bad, maybe I'll have him do my ball joints and suspension too. We'll see. The car has been running great right up to now.

linderpat

that'll be the test in the am

Shark Attack

holy crap its 1 AM... im going to bed... have to work tomorrow.. ( and they said self employment was easy)